We have a couple of posts on this blog that refer to mixi (the huge Japanese social networking site) and we have offered to send an invitation to those who asked for one (mixi requires an invitation to join).
Well, there have been many requests but those living outside of Japan are having a very difficult time getting a mixi account set up. My friend Stephen recently wrote an excellent post on his blog explaining how it can be done. Click on the following title to read Stephen's post:
How I Got On Mixi, and The Only Methods I Know For Non-Japanese To Get On Mixi
edit: Stephen here. I found out that Mixi now requires a Japanese cell phone number for any email address, so getting in to Mixi requires a friend in Japan who's willing to let you use his cell phone.